SEVERE THUNDERSTORM WARNING

Severe Thunderstorm Warning: Maricopa, AZ

Severe Thunderstorm Warning issued October 21 at 3:34PM MST until October 21 at 3:45PM MST by NWS Phoenix AZ · EXPIRED

The National Weather Service office in Phoenix, AZ issued a Severe Thunderstorm Warning for Maricopa, AZ on Wednesday, October 21, 2026. It has expired.

WarningSevere Thunderstorm Warning

StatusExpired

Hail up to2.75 in · 7.0 cm

Wind gusts60 mph · 97 km/h

Issued byNWS Phoenix, AZ

Area1 area(s)

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What the Weather Service said

At 334 PM MST, a severe thunderstorm was located over Metro Center, or near Phoenix, moving northeast at 40 mph. THIS IS A DESTRUCTIVE STORM FOR CENTRAL PORTIONS OF PHOENIX. HAZARD...Baseball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. Locations impacted include... Phoenix, Glendale, Sun City, Deer Valley Airport, North Mountain Park, Metro Center, Piestewa Peak Park, Desert Ridge Marketplace, Arrowhead Mall, Downtown Glendale and Downtown Peoria. This includes the following highways... AZ Route 101 between mile markers 10 and 15...and between mile markers 17 and 18...and near mile marker 19. US Highway 60 between mile markers 149 and 158. AZ Interstate 17 between mile markers 203 and 212. AZ Route 51 between mile markers 10 and 15...and between mile markers 3 and 6. AZ Interstate 10 near mile marker 146. AZ Route 303 between mile markers 138 and 139.

What to do

Seek shelter now inside an interior room on the lowest floor of a well-built structure. This storm is capable of producing destructive hail and damaging winds.

What a severe thunderstorm warning means

A thunderstorm is producing, or about to produce, hail one inch (2.5 cm) across or larger and/or winds of 58 mph (93 km/h) or more. Move indoors, away from windows.

Watch or warning?

A watch means conditions are right for a hazard to develop: be prepared. A warning means it is happening or about to happen: take action now. Advisories are for less serious hazards that still call for caution.

Official, current information: weather.gov forecast for this area · Storm Prediction Center. See every U.S. warning that day.

Did you know?

Derechos. A derecho is a long-lived line of storms with damaging straight-line winds that can sweep hundreds of miles in a day.

More: U.S. weather warnings · all events